Zogulitsa
Kabukhu kaposachedwapa-2025
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Ma Capacitors a DC Bus a IGBT-Based Converters mu Traction Apparatus
DC basi capacitor DMJ-MC mndandanda
Ma capacitor a filimu yachitsulo amapangidwa ndi mafilimu awiri achitsulo okhala ndi filimu yapulasitiki ngati dielectric.
Chitsulo chopyapyala kwambiri cha aluminiyamu (~ 0.03 μm[2]) choyikidwa mu vacuum chimayikidwa mbali imodzi kapena zonse ziwiri kuti chikhale ngati ma electrode.
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Ma Capacitors a Magalimoto Osakanikirana ndi Amagetsi Opangidwa ndi Kapangidwe Kakang'ono
1. Phukusi la pulasitiki, losindikizidwa ndi utomoni wa epoxy wofewa, zingwe zamkuwa, kukula kosinthidwa
2. Kukana ku filimu ya polypropylene yachitsulo yodzichiritsa yokha, yamagetsi okwera
3. ESR yotsika, kuthekera kogwiritsa ntchito mphamvu yamagetsi ya ripple yambiri
4. Low ESR, imachepetsa bwino mphamvu yamagetsi yobwerera
5. Mphamvu yayikulu, kapangidwe kakang'ono
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GTO snubber capacitor mu zida zamagetsi zamagetsi
Ma circuit odulira magetsi ndi ofunikira kwambiri pa ma diode omwe amagwiritsidwa ntchito posintha ma circuit. Amatha kupulumutsa diode ku ma spikes ochulukirapo, omwe angabuke panthawi yobwezeretsa magetsi.
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Kapangidwe ka ma capacitor a filimu ya snubber yapamwamba kwambiri yamagetsi a IGBT
Wotsutsa wa IGBT SMJ-P
1. Chikwama cha pulasitiki, Chotsekedwa ndi utomoni;
2. Ma lead opangidwa ndi zitini okhala ndi mkuwa, osavuta kuyika pa IGBT;
3. Kukana mphamvu yamagetsi yapamwamba, tgδ yotsika, kukwera kwa kutentha kochepa;
4. ESL ndi ESR yotsika;
5. Kugunda kwamphamvu kwamphamvu.
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Chovala chapamwamba kwambiri chokhala ndi mphamvu yayikulu yogwira ntchito
Wotsutsa wa IGBT SMJ-P
Ma capacitor a filimu ya CRE snubber amapangidwira kuti agwire ntchito yamphamvu kwambiri yomwe imafunika kuti atetezedwe ku ma voltage osakhalitsa.
1. Mphamvu yolimba ya dv/dt yapamwamba
2. Kukhazikitsa kosavuta kwa IGBT
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Kapangidwe ka capacitor ya IGBT Snubber yapamwamba kwambiri yogwiritsira ntchito mphamvu zambiri
Wotsutsa wa IGBT SMJ-P
1. Chikwama cha pulasitiki, Chotsekedwa ndi utomoni;
2. Ma lead opangidwa ndi zitini okhala ndi mkuwa, osavuta kuyika pa IGBT;
3. Kukana mphamvu yamagetsi yapamwamba, tgδ yotsika, kukwera kwa kutentha kochepa;
4. ESL ndi ESR yotsika;
5. Kugunda kwamphamvu kwamphamvu;
6. Chiphaso cha UL.
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Ma capacitor a Polypropylene Snubber omwe amagwiritsidwa ntchito pamagetsi amphamvu, mphamvu zamagetsi zambiri komanso kugunda kwamphamvu kwamagetsi
Kachipangizo ka Axial Snubber SMJ-TE
Ma Snubber Capacitors ndi ma capacitor amphamvu kwambiri, okhala ndi ma axial terminals. Ma Axial Film Capacitors akupezeka ku CRE. Timapereka zinthu, mitengo, ndi ma datasheet a Axial Film Capacitors.
1. Chitsimikizo cha ISO9001 ndi UL;
2. Zinthu zambiri zomwe zili m'gululi;
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Chojambulira cha Snubber chamagetsi chapamwamba kwambiri
CRE imapereka mitundu yonse ya ma capacitor osasamala.
1. Ma capacitor atsopano opangidwa ndi CRE
2. Mtsogoleri pakupanga ndi kupanga ma capacitor a filimu.
3. Ngati mukufuna zinthu zapadera zodzitetezera ku snubber, pitani ku malo athu opangira mapangidwe kuti mupeze capacitor yodzitetezera ku snubber yopangidwa mwapadera.
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Capacitor yatsopano ya AC filter ya converter yamakono ndi UPS application
CRE imapanga mitundu yosiyanasiyana ya ma capacitor a dielectric a filimu - kuyambira mayankho a ma capacitor amphamvu kwambiri amakampani opanga mafakitale ndi magalimoto, mpaka ma capacitor amafilimu amphamvu kwambiri oyenerera kugwiritsa ntchito magetsi onse amphamvu pamagetsi osiyanasiyana a 100V volts mpaka 100 kV.
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Capacitor yamphamvu ya filimu ya AC yabwino kwambiri
Fchakudya:
1: Phukusi la tepi ya Mylar, Losindikizidwa ndi utomoni;
2: Zitsogozo za nati zamkuwa, kukula kochepa, kuyika kosavuta;3: Mphamvu yayikulu, kukula kochepa;
4: Kukana mphamvu yamagetsi yapamwamba, ndi kudzichiritsa yokha;
5: Mphamvu yamagetsi yothamanga kwambiri, mphamvu yamagetsi yothamanga kwambiri yothamanga kwambiri yothamanga kwambiri (dv/dt).
